diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index e0c09b6..845e9d5 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -14,6 +14,8 @@ jobs:
         working-directory: ./convert-attestations
     steps:
       - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
 
       - name: Install uv
         uses: astral-sh/setup-uv@v4
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 978e967..7ba9e53 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -18,6 +18,8 @@ jobs:
         working-directory: ./convert-attestations
     steps:
       - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
 
       - name: Install uv
         uses: astral-sh/setup-uv@v4